public class classTest {
	public static void main(String[] args) {
		Person Helen = new Person();
		Helen.age = 18;
		Helen.name = "Helen";
		Helen.eat();
		System.out.println();
		Helen.sing();
	} 
}
class Person {
	int age;
	String name;
	void eat() {
		System.out.print(age + "岁的" + name + "正在吃饭");
	}
	void sing() {
		System.out.print(age + "岁的" + name + "正在唱歌");
	}
}